Question

Пожалуйста!!!даю 20 балов!35 номер!

Answer 1

$1) frac{ a^{2}-2a+1 }{a-1} = frac{ (a-1)^{2} }{a-1} =a-1.$



$2) frac{(t+3)*2}{ t^{2}+6t+9} = frac{(t+3)*2}{ (t+3)^{2}} = frac{2}{t+3} .$